Array

package nestedif;



/**
 *
 * @author Ron Ivin Gregorio
 */
import java.util.*;
public class hey {
    public static void main(String[] args) {

        char operator;
        double sum = 0.0, prod = 1.0, diff = 0.0, quot = 1.0;

        Scanner input = new Scanner(System.in);
        System.out.print("Enter number of whole numbers to process: ");
        int nnum = Integer.parseInt(input.nextLine());
        int arraywholenum[] = new int[nnum];

        for (int i = 0; i<arraywholenum.length; i++)
        {
            System.out.print("Enter the Whole number " +(i+1)+ " : " );
            arraywholenum[i] = input.nextInt();
        }
        System.out.println();

        System.out.print("Enter operator (+,-,* or /) ");
        operator = input.next().charAt(0);

        switch(operator)
        {
            case '+':

                for (int i = 0; i<arraywholenum.length; i++)
                {
                    sum = sum + arraywholenum[i];
                }
            System.out.println("The sum is: " +sum);
            break;

            case '-':
                for (int i = 0; i<arraywholenum.length; i++)
                {
                    diff = diff - arraywholenum[i];
                }
                System.out.println("The diff is: " +diff);
                break;

            case '*':
                for (int i = 0; i<arraywholenum.length; i++)
                {
                    prod = prod * arraywholenum[i];
                }
            System.out.println("The product is: " +prod);
                break;

            case '/':
                for (int i = 0; i<arraywholenum.length; i++)
                {
                    quot = quot / arraywholenum[i];
                }
            System.out.println("The quotient is: " +quot);
                break;
        }

    }

}